Sigh... caught myself at the vending machine today, putting in quarters, then hitting the release to see what would drop, several times. I guess I've caught the bug... Took a couple national parks for my collection, but nothing too amazing in there.
I usually get them all, but put all zinc back. I grabbed eight out of one earlier today and threw in a dime that I found ran over in the parking lot.
I did that at work once when it gave 2 war nickels. Ended up draining the machine to come away with 13